Haircloth-loom.



G S. 00X. HAIRGLOTH LOOM. APPLICATLON FILED JULY25, 1913.

1,094,882. Patented Apr. 28, 1914.

III'II MTN/55356;. #WEA/70H G6076 COX 5,5. WM By mQ//ww ,wrom/fx GEORGE S. COX, OF PHILADELPHIA, PENNSYLVANIA.

HAIRCLOTH-LOOLVI.

Specicaton of Letters Patent.

Application flied July a5, 1913.

Patented Apr. 28, 1914.

Serial No. 781,064.

To all whom. 'it may concern:

Be it known that I, GEORGE S. Cox, a citizen of the United States, residing at Phila-- delphia, county of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in I-Iaircloth-Looms, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to looms, and particularly to that type of loom adapted to the manufacture of hair-cloth and similar goods, wherein the weft is prepared in separate strands or picks of substantially equal length or slightly longer than the Width of the goods to be woven, and wherein a nipper is provided having a pair of jaws at each end or at one end by means of which picks of hair are pulled from one side to the other of the loom at each reciprocat-ion or semi-reciprocation of the nipper across the reed. A loom of this type is set forth in Letters Patent No. 1,026,430, issued to me May 24, 1912. "ne object of the invention of that patent was to provide means for imparting to the nipper a differential movement comprising a gradual retardation at the end of each traverse and a gradual acceleration at the beginning of each traverse. To this end certain actuating mechanism for the nipper was` provided, the same comprising a gear on the crank-shaftI in driving engagement with a gear on an auxiliary shaft, a bevel gear on the auxiliary shaft in driving engagement with a bevel gear on a third shaft turning in bearings on a stand, a crank on t-he third shaft, a rack-bar attached to the crank and engaging a pinion on a fourth shaft turning in bearings on a second stand, an eccentric pulley on the fourth shaft, and a flexible con nection secured between its ends to the nipper and secured at its opposite ends to the pulley around which it is adapted to wind as the pulley is oscillated, thereby impart-ing to the nipper its reciprocating traverse movement. The pulley is so constructed, arranged and proportioned as to impart to the nipper the differential movement aforesaid. The construction set forth in said patent is operative, but unless the driving mechanism is constructed with a considerable degree of care and accuracy, certain defects in the operation tend to develop, which I have discovered arise by reason of the tendency to lost motion in the driving connections between the crank shaft and the pulley. This lost motion I have foundy to be due partly to the number of transfers in the drive and partly to the transfer of the axis of rotation of the driving parts from one parallel to the crank-shaft to one at right angles thereto.

The object of the present invention is to simplify the driving connections between the crank-shaft and the pulley, eliminate or radically reduce lost motion, and avoid changing the direction of the axis of rotation of the driving parts, and thereby eleminate the de fects of operation hereinbefore mentioned. To this end I have devised the driving connections shown in the accompanying drawings, in which- Figure 1 is a section through the loom, showing a front view of the part of the loom embodying my invention; Fig. 2 is a side elevation of the same; Fig. 3 is an enlarged detail view showing the means of attaching the flexible connection to its operating pulley.

10 is the loom frame; 11 the reed; 12 the lay carrying trunnions 13 by means of which the lay is pivoted in bearings 14 in the loom frame; and 15 the crank-shaft carrying cranks 16 and links 17 b-y means of which the lay is oscillated. Secured direct to the crankshaft is a crank 1S. To the crank 18 is ad justably secured one end of a rack-bar 19 the other end of which has a rack 20 engaging a pinion 21 on a shaft 22. The shaft 22 has its bearing at one end in the loom frame and at its other end in a stand 23. As shown, this shaft may be simply a prolongation of one of the trunnions 13 of the lay. On the shaft 22 is loosely sleeved a frame 24 in which turn a pair of idler rollers 25 engaging the face of the rack-bar opposite its toothed face and adapted to hold the rack in driving engagement with the pinion. On the shaft 22 is a pulley 26. For purposes of simplification, this pulley is shown as mounted concentric to the shaft, as the present invention is not concerned with the special method of mounting the pulley.

2T is a flexible connection, which conveniently be an ordinary rope or sprocket chain, opposite ends of which are adapted to wind more or less about the driving face of the pulley. The ends of the rope may be .fastened to the pulley in any convenient manner, as, for example, each rope end may be passed through a radially-extending hole through a lilange on an angle plate 29 secured to the pulley. Jin adjusting nut 30 and a 5 holding nut Eil engage the bolt on opposite sides ot the flange. 'l he opposite ends-ot1 the rope connect 'with the tace ot the pulley' preferably side by side and the two end sections extend around the Atace olf the pulley in opposite directions and thence upwardly, one end section extending over a roller 32 and thence longitudinally oit' the loom toward one end oi the lay and shuttle race and under and over a pulley 313, whilethc other section extends over av roller letand thence longitudinally of the loom toward the other end of the lay and shuttle race and under and over a roller B5. The rollers or pulleys 332, i323, 3l and 35 are all mounted to turn in bearings on the lay. rllhe middle part of the rope extends along ay cut-away portion ot' the lay beneath the shuttle racc. The rope is secured to a slide 3G, which is secured to the nipper or shuttle 237 and operates in a track in the overhanging end or" the lay.

l have shown a shuttle or nipper comprising a stick haring a pair of o8 at one end only, the same operating to pull picks of hair from one side to the other at each semireciprocation. lt will be understood, however, that the invention is not limited in its application to a shuttle of this type.

lt will be observed that the arrangement is such that the pulley 26 makes one complete oscillation back and forth and the shuttle one complete reciprocation back and forth along the shuttle race during each complete rotation of the crank-shaft l5 this being necessary where the invention is applied, as shown, to a nipper stick having jaws at one end only and operating to pull picks ot hair from one side to the other in its movement in one direction only.

lt will be understood that when the lay starts to beat in one direction, the empty shuttle starts on its movement from right to left and that as the lay completes its movement in this direction, the nipper jaws travel through the warp shed and grasp a pick of hair, that as the lay starts to beat in the opposite direction, the shuttle starts on its return increment, during which it insorts a. pick ol hair, and that the jaws pass beyond the warp shed as the lay completes its stroke. By adjusting the rack bar 19 on the crank 18, the extent of the angular movement of the pulley 26 may be varied, and by this means the length of travel oit the shuttle may be varied to adapt it to the so weaving of goods of different widths.

lt will be observed that the driving mechanisin between the crank-shaft and the sluittlc-actuating pulley is much simplified over that disclosed in my said patent, in that there are eliminated two shafts and two l l i Loa/ncaa pairs of gears. Further the axis of tbe pulley shalt 'i arranged parallel to the axis ot the crankshaft, the two sections of the Vllexible coimection being arranged to feed upward from the shuttle-acluating pulley, thereby.Y permit-ting the idler pulleys to be arranged so as to divert the middle portion ol the flexible connection into the position necessary lo enable it to reciprocate the shuttle.

While l hare referred to the'illexible connection as a single rope attached at or near its middle portion vto the shuttle, it is obvious that the rope may be formed in two separate sections adjacent ends oi which are attached to the shuttle; F ig. l serving to illustrate this equivalent construction it it be assumed that the slide 3G is the common point to which such adjacent ends are attached.

Haring now fully described my invention,

T claim and desire to protect by Letwhat .r ters Patent is:

l. ln a loom, the combination with the crank-shaft, the pivoted lay and the shuttle 'acecarried thereby, and the shuttle, of shuttle reciprocating means comprising a pulley turnable on an axis parallel to the crank-shaft, a. crank on the crank-shaft, a pinion on the pulley shalt, a rack bar attached to the cranlr and in driving engagement with said pinion, a flexible connection engaging the shuttle, the opposite ends of the flexible connection connecting with the pulley i'ace and winding about the same in opposite directions, and guide rollers, engaged by the flexible connection, between the shuttle and each end of the flexible connection connected to the pulley.

2. ln a loom, the combination with the crank-shalt, the pivoted lay and the shuttle race carried thereby, and the shuttle, of shuttle reciprocating means comprising a pulley turnable on an axis pa'allel to the crankshaft, a pinion on the pulley shaft, a raclr bar attached to the crank and in driving engagenient with said pinion, a l'lexible connection engaging the shuttle, the opposite ends oli the flexible connection connecting with. the pulley liace and winding about the same in opposite directions and directly feeding therefrom in an upward direction, a pair of guide rollers arranged above the pulley, and a pair ol guide rollers arranged. above and on opposite sides oit' the first pair of guide rollers and below the level oit the shuttle race, one roller oitl each. pair engaging one section of the flexible connection and the other roller oll each. pair engaging the other section of the flexible connection.

3. In a loom, the combination with the crank-shaft, the pivoted lay and the shuttle race carried thereby and the shuttle ot' shuttle reciprocatine' means comprising a pulley turnable on an axis parallel to the crank shaft, a pair of guide rollers directly above the pulley, a pair of guide rollers above and ou opposite sides of the first pair of guide rollers and below the level of the shuttle racc, a flexible connection connected to the pulley face and Winding about the saine in one direction and thence extending upward to one of the first pair of rollers, thence longitudinally of the shuttle race to one of the second pair of rollers, thence longitudinally oi the shuttle race and attached to the shuttle, thence longitudinally of the shuttle race to the other of the second pair of rollers, thence longitudinally of the shuttle race to the other of the first pair of rollers, thence downward to and Winding about the pulley face in a direction opposite to the direction of extension of the rstend of the flexible connection about the pulley face, a crank on the crank-shaft, a pinion on the pulley shaft, and a rack-bar attached to the crank and in driving engagement With said pinion.

In testimony of Which invention, I have hereunto set my hand, at Philadelphia, on this 16th day of July, 1913.

GEORGE S. COX.

Titnesses ELLA B. PIERCE, E. C. SEIBEBLICH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

